Let’s work a sample size problem.
A random sample size, n, is to be taken from a large population having a standard deviation of 1″. The sample size is to be determined so that there well be a 0.05 risk probability of exceeding a 0.1″ tolerance error in using the sample mean to estimate μ. Which of the following values is nearest the required sample size?
Please work out your answer, add a comment with your result and show your work, please. Don’t peek at the comments if you’ve not worked it yet.
[note to self: find a way to use a multiple choice feature that tallies the results]
This problem from the Quality Council of Indiana with permission.
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Also published on Medium.